TACOMA, WA–Amateur archaeologist Joshua Bushnell, 5, announced Monday that he is certain that the remains of a dinosaur are buried in the Bushnell family backyard. "I have to dig up the bones to get them to the museum," Bushnell told his mother, Kathy Bushnell. "There's a big brontosaurus by the swingset." Bushnell has asked his mother to buy him a new digging tool that is larger than his plastic Fisher-Price sand shovel.